HashSet in Java | How to implement HashSet in Java

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HashSet has following Features:
- No Duplicate values
- No Iteration order maintained
- Permits null value
- Implements Set Interface
- Not Synchronized
- Underlying Data structure is HashTable, Objects are inserted based on HashCode
- Internal Working is based on HashMap
- Initial Capacity
- Load Factor = Number of elements present / Size of HashTable
- Default initial capacity is 16 & load factor is 0.75
- HashSet h = new HashSet();
- HashSet h = new HashSet(int initialCapacity);
- HashSet h = new HashSet(int initialCapacity, float loadFactor);

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Where explanation of in-depth analysis

maheshd
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Why hashset allowed null
Will you explain

SubelalPal
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You're not actually "implementing" it

roct